21st Century Advantage is owned and operated by Bob Pitlak. Bob has been programming personal computers for more than 25 years and holds an M.S. degree in physics as well as an M.B.A. He was editor of a regular column on the use of programmable calculators for Electro Optical Systems Design magazine in the 1980's, and has previously written a book on programming, Computer Programs for Use in Electro-Optics, published by Allied Signal Corporation. He is currently Manager, Information Systems, for Rutland Plywood Corporation, and has been teaching programming and other computer-related college courses at several campuses of the Community College of Vermont, and the College of St. Joseph(VT). Click Here for a list of publications by Mr. Pitlak.